the other gas being the exhaust gas of engine

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas > peculiar to engines having other non-fuel gas added to combustion-air > the other gas being the exhaust gas of engine

CPC:

Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas > peculiar to engines having other non-fuel gas added to combustion air > the other gas being the exhaust gas of engine

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

Child Classifications

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F02D 2021/083 2nd only CPC only CPC only
F02D 2021/086 2nd only CPC only CPC only

Top Applicants

Top Applicants (IPC)

Class F02,2013–2023, worldwide · Source: EPO PATSTAT

TOYOTA MOTOR CORPORATION 8,687
ROBERT BOSCH DE 8,328
FORD GLOBAL TECHNOLOGIES US 7,423
GE (GENERAL ELECTRIC COMPANY) US 5,732
UNITED TECHNOLOGIES CORPORATION (UTC) US 5,592
HYUNDAI MOTOR COMPANY KR 4,699
TOYOTA MOTOR CORPORATION JP 4,541
DENSO CORPORATION 3,711
WEICHAI POWER COMPANY 3,486
SAFRAN AIRCRAFT ENGINES FR 3,249

Top Applicants (CPC)

Class F02,2013–2023, worldwide · Source: EPO PATSTAT

ROBERT BOSCH DE 8,801
FORD GLOBAL TECHNOLOGIES US 8,171
GE (GENERAL ELECTRIC COMPANY) US 6,957
HYUNDAI MOTOR COMPANY KR 5,390
UNITED TECHNOLOGIES CORPORATION (UTC) US 5,250
TOYOTA MOTOR CORPORATION JP 5,214
TOYOTA MOTOR CORPORATION 4,149
DENSO CORPORATION JP 3,400
KIA MOTORS CORPORATION KR 3,388
SAFRAN AIRCRAFT ENGINES FR 3,332